44 Y Combinator companies with a founder who worked at Bloomberg before.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
| Company | Batch | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
TRM is building a safer world for billions of people. | S19 | 481 | +14% | +36% | 67 | $220M | Series C$70M, Sep 2026 |
The Costco for cloud is here 🔥🔥 | S22 | 111 | +19% | +48% | YC | $4.5M | Seed$4M, Apr 2024 |
AI-Powered Building Management | S17 | 109 | +2% | −8% | 1 | $82.6M | Series C$60M, Nov 2021 |
The fastest way to build AI assistants on technical content | S23 | 51 | +11% | +50% | YC | $3.7M | Seed$3.2M, Oct 2024 |
Carbon markets platform and solutions | S21 | 44 | −6% | +2% | 0 | $16.6M | Series A$13.5M, Apr 2023 |
Visual Editor for React, powered by AI | S23 | 43 | −14% | −12% | YC | $5M | Seed$5M, Oct 2025 |
Upcall provides outbound call professionals as a service. | W17 | 30 | −3% | +3% | 0 | $2.2M | Seed$2.2M, Apr 2017 |
TurboTax for Medicaid | S23 | 28 | +75% | +65% | 1 | $22.3M | Series A$18.3M, Jul 2025 |
Worldwide exam-prep platform | S24 | 25 | +56% | +79% | 1 | $500K | YC investment$500K, Jan 2025 |
AI & financial services for real estate in LatAm, starting by rent | W23 | 17 | +6% | +31% | 0 | $1.6M | Seed$1.1M, Sep 2025 |
The integration layer for live events infrastructure | W24 | 16 | −6% | +23% | 0 | $500K | YC investment$500K, Apr 2024 |
Voice AI | S22 | 14 | +75% | +27% | 0 | ||
The AI Operator for Financial Services | X25 | 13 | +8% | −7% | 2 | $9.4M | Non-equity support$1M, Oct 2025 |
AGI for home service | S25 | 11 | +83% | YC | $500K | YC investment$500K, Sep 2025 | |
AI Agents for Advisory & Financial Services. | S24 | 11 | +22% | +38% | 0 | ||
The UI toolkit for Dashboards | S23Acquired | 10 | 0% | 0% | 0 | $500K | YC investment$500K, Sep 2023 |
AI-Native FDA Regulatory Services | X26 | 8 | 0 | $500K | YC investment$500K, Jun 2026 | ||
AI-native insurance brokerage. | F25 | 8 | 5 | $500K | YC investment$500K, Dec 2025 | ||
Intelligent media storage for creative teams. | F25 | 8 | +33% | YC | $500K | YC investment$500K, Oct 2025 | |
Highly customizable and blazingly fast analytics for asset managers. | S24 | 8 | 0 | $3M | YC investment$500K, Sep 2024 | ||
Autonomous operations for industrial distributors | X26 | 5 | 0% | 0% | 0 | ||
Understand why your AI agent breaks. Iterate fast to fix it. | S24 | 5 | 0% | 0 | $3.5M | Seed$3M, Mar 2026 | |
Automating workflows. | S24 | 5 | 0 | $500K | YC investment$500K, Jan 2026 | ||
Add profiles to email. | S10Acquired | 5 | 0% | 0% | 0 | $1M | Seed$1M, Aug 2010 |
RL environments for underexplored domains. | X26 | 4 | 0 | $500K | YC investment$500K, Jun 2026 | ||
Financial technology solutions for Indonesian creative businesses | W22 | 4 | 0 | SeedMar 2022 | |||
The autonomous back-of-house for restaurants. | S26 | 3 | YC | ||||
AI-native Accounting Firm that's killing Deloitte | S26 | 3 | 0 | $500K | YC investment$500K, Sep 2026 | ||
Forward-deployed AI Agents | X26 | 3 | 0 | ||||
AI-native custom software + data analytics for real economy operations | S25 | 3 | 0 | $500K | YC investment$500K, Sep 2025 | ||
AI-native remote operations center for hardware fleets | W25 | 3 | 0 | $500K | YC investment$500K, Mar 2025 | ||
Heyzap (acquired by Fyber for $45m in 2016) is one of the largest… | W09Acquired | 3 | 0 | $8M | Series B$4.3M, Dec 2012 | ||
Consumer simulations for CPG market research | X26 | 2 | 0 | $500K | YC investment$500K, Jun 2026 | ||
Institutional infrastructure for prediction markets | X26Inactive | 2 | 0 | $500K | YC investment$500K, Jun 2026 | ||
OctaPulse builds computer vision and robotics for fish farms and… | W26 | 2 | YC | $500K | YC investment$500K, Mar 2026 | ||
AI operating system for commercial loans | W26 | 2 | YC | ||||
The health coach that texts you first | W25 | 2 | 0 | $500K | YC investment$500K, Mar 2025 | ||
Learn language with real-world content, at your level | S23 | 2 | 0 | Pre-seedOct 2023 | |||
Marketplace enabling social commerce for brands and content creators. | W20Inactive | 2 | 0 | $1.1M | Seed$750K, Apr 2020 | ||
The programmable spreadsheet. | W23Inactive | 1 | 0 | $2M | Pre-seed$2M, Mar 2023 | ||
Observability for Data Engineering Teams | S21Inactive | 1 | 0 | $1.3M | Pre-seed$1.3M, Sep 2021 | ||
Indoor navigation through augmented reality on your phone. | W19Inactive | 1 | 0 | $150K | YC investment$150K, Aug 2019 | ||
| W15Inactive | 1 | 0 | $9M | Series A$6M, Jan 2016 | |||
Haywheel is an artisan food marketplace for restaurants and specialty… | S16Inactive | 0 |
Every launched company in YC's public directory, with its batch, status, industry and location. New companies show up the week YC lists them.
Each company is matched to Crustdata by its website. Crustdata adds team size and its change over 6 and 12 months, open roles from job postings, reported funding, and founders' past employers.
Hiring the most counts distinct roles posted in the last 60 days. Growth needs 10+ people today, shrinking 20+ a year ago, so tiny teams do not top the lists. Rebuilt every week.
The numbers on this page come from three Crustdata API calls. Crustdata tags 5,000+ companies with Y Combinator as an investor; swap the filter for any investor, industry or headcount range and track your own list, with founders' work emails one call away.
# 1. every company with Y Combinator as an investor curl https://api.crustdata.com/company/search \ -H "authorization: Bearer $CRUSTDATA_API_KEY" \ -H "x-api-version: 2025-11-01" \ -d '{ "filters": { "field": "funding.investors", "type": "in", "value": ["Y Combinator"] }, "fields": ["basic_info.name", "headcount.total", "headcount.growth_percent", "funding.total_investment_usd"], "limit": 100 }' # 2. open listings per company, last 60 days (limit 0 = counts only) curl https://api.crustdata.com/job/search \ -H "authorization: Bearer $CRUSTDATA_API_KEY" \ -H "x-api-version: 2025-11-01" \ -d '{ "filters": { "op": "and", "conditions": [ { "field": "company.basic_info.company_id", "type": "in", "value": [...] }, { "field": "metadata.date_added", "type": "=>", "value": "2026-08-24" } ]}, "limit": 0, "aggregations": [{ "type": "group_by", "field": "company.basic_info.company_id", "agg": "count" }] }' # 3. the same company filter as a weekly watch: POST /watch/company/search
44 Y Combinator companies have a founder who worked at Bloomberg; 34 are active.
6 companies posted roles in the last 60 days, led by TRM Labs (67 roles), Fernstone (5 roles) and Eloquent AI (2 roles). 14 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): NOSO LABS (+83%), Fortuna Health (+75%) and Feather (+75%).
Largest latest rounds in the last 12 months, after their YC batch: TRM Labs ($70M) and Laminar ($3M).